Ignition-circuit-control mechanism



v N ,June' 10,1930. E. F. FIEDLER] 1,762,970

' IGNITION CIRCUIT VCONTROL MECHANISM Filed Feb. 8, 1928 @H .v M E m MEI m n T N WW m. w m w 7 k w y 7: A QM? wfl ,NW mm W W 5 Patented June10,1930 7 Q i I v EDWAR F. FIED ER, or WAUWATOSA, Wisconsin, ASSIGNOR'ro onnivr MA UrAoQ 1 TUBING COMPANY, OF MILWAUKEE, WISCONSIN, A conroa'rIon or isconsin IormTIon-amour-contact mcnmism '7 7' I i I ApplicationfiledFebruary 8,1928, Seria1 IyTof2 52fl52."

This invention relates to improvements in The breaker mechanism is.fully disclosed ignition circuitccontrol mechanism. in 'the companionapplication previously vThis application is a companion to applica--notec l and is not, therefore, disclosed herein. tion Number 209,568,filed July 30, 1927 ,and Such mechanism is enclosed by a casing 10 5discloses improvements in similar mechanism (shown fragmentarily) andfrom which pro- 50 for controlling the circuit breaker mechanism jects atubular housing11'. VVithin the tububy means of a remote key operatedlock. lar housingis fitted a'busliing 12 which serves The cable wireextending from the lock to 'as a bearingor guide foritheplunger'lffiwThe the circuit breaker engaging mechanism is enplunger is: providedwith an'enla'r gedhead closed by a flexible sheathing having a mini- 14-receivable in opening. 15. in-.the casing 5 mum inner dimension whichincreasesas the cover 16. Adjacent thehead-la-is a dielectric sheathingis flexed. Theref0re,-in effect, the spool'l'l' held in contacttherewith by-rthe'nut Wire cable is shortened relative to the Sheath-18. The spool '17 engages the circuit breaker ing and as the lock andcircuit breaker are arm (not shown).

15 definitely located, any change, actual or in Secured inanyisuitablemanner to the 60 elfect, in the length of the cable wire must plunger 13is a tubular extension having be compensated'for in some manner. Conanannular collar 21 011 itsinterior intersequent-ly, it is the primaryobject of this in- 'mediate the ends thereof. c The collar 5 21ventionto arrange the V circuit breaker enserves as a slide bearing forthe. rod 22 which gaging mechanism in relatively adjustable .is movabletelescopically relative to the ex- 65 3 parts having, within limits, aninfinite numtension 20. This rodisprovided with a stop her of relativelyfixed positions compensatflange 23 adapted to abut the collar 21 and ingfor the shorteningefi'ect of the cable Wire w ith an axially disposedhole 24 receivlngan due to flexing, of the sheathing during in-. end ofthe cable wire 25. Holes 26 are prostallation. 'vided transversely ofthe ro d 22-and'1nte'r- 0 A further objecty'is to arrange theadjustsecting the hole 24. The end 27 of the cable able parts so thatthey will under normal wire is bent at 28 and29into the respectiveconditions be relatively fixed and under abholes 26 thereby to anchorthe end to the rod normal conditions, such as will cause changes '22, Dip d b ut th od 22 i lit hi 30 ill the u v r 0f the i g-be u tion band 30held inengagement with the rod 75 7 .matically relatively adjustablethereby comby a contractile splitcspringclutch 31. The pensating for thesl gh e h nge- 'apfriction band and spring clutch are posi- Parellt g hof e hea h gtioned within the tubular extension 20 and In the drawings:are held against axial movement relative Figure 1 is a side elevationillustrating the thereto by the collar21 and the cap 32 which "sorelative relation of the parts when installed. is secured to thetubular-extension in: a suit- Figure 2 is a longitudinal sectionalviewable manner such'as indicated at 33. l y

of the circuit breaker engaging mechanism. Secured to the housing '11 isa tubula-r' fit-.. Figure 3 is a longitudinal sectional vieW ting orshield 35 closed at one end by a coreshowing theinterior of the remotecontrol or-plug 36 in which the-outer flexible sheath- 35 key operatedlock casing. ing 37 is'anchored The outer flexible sheath- I Figure 4 isaseetional view takenon the ing' encloses the inner flexible sheathing38.

l of Figure v 7 7 The cable wire 25, and the flexible sheathing Likeparts are identified by the same refet- 37 and '38 extend, as indicatedin vFigure 1, :c

ence characters throughout the several views. to the. lock housingAOwhich is positioned: in

an automobile dash (not shown). The outer flexible sheathing is securedto the housing 40 through a plug or core 41 and the cable wire issecured to the plunger cylinder 42 which .may be reciprocated byappropriate mechanism (not shown in detail) operated from the keycontrolled lock 43. The cable wire reciprocating mechanism is shown anddescribed only in so far as it is necessary to illustrate some means forreciprocating the cable wire 25.

As illustrated "in Figure 1, when the ignition circuit control mechanismis installed, the sheathing 37 enclosing the cable wire 25 describesatortuous path and as a result the several successive coils of thesheathing arrange themselves angularly relative to adjacent coils. lVhenthe axis of the sheathing is disposed in a straight line, the severalcoils are in contact with and parallel to adjacent coils. Therefore,when the axis of the sheathing is disposed in a curved line, the coilswill,

as illustrated, lengthen the axis of the sheathing. It is apparent,then, that the effect produced'upon the cable wire is much the same asthoughit were shortened. In order to compensate for this diiference, theforegoing described clutch: elements connecting the cablewire with theplunger 13 is provided.

The spool 17 must at all times be inproper relation to the circuitbreaker arm (not shown) and the clutch elements assure this relation.Assuming that the cable wire and spool are properly adjusted before thecircuit control mechanism is installed, then when isuch mechanism isinstalled, the wire, in order to compensate for the lengthening of thesheathing axis, will pull the spool toward the casing 10. Properadjustment of the spool 17 may again be secured by operating the lock 43to'draw the clutch end of the cable wire further into the sheathing 37.This will draw the capped end of the tubular extension 20 into contactwith the plug 36 which defines the limit of movement of the extension inthat direction. Further inward movement of the cable wire will draw therod 22 outwardly axially of the extension .20, the clutch or frictionband engaging the rod 22 with suflicient pressure only to hold the 'rodand extension in relative adjustment under normal condltlons.

If the axis of the sheathing 37 shortens for any reason, properadjustment of the cable wire relative to the spool 17 will be secured bymanipulating the lock 43 to extend the end 27 of the wire to its maximumdistance exteriorly of the sheathing. This will move the extension 20into contact with the bushing 12 and will cause the rod 22 to movethrough the friction band 30 at sufficient distance to secure properrelation between the wire 25 and spool 17 j The foregoing notedmechanism, as illustrated in the drawings, provides a" simple,

efficient and novel means of automatically adj usting the ignitioncontrol elements to compensate for variations in the distance between acircuit control switch and its remote key operated lock for the ignitioncontrol elements. embodiment of my invention, it nevertheless, isrecognized by me that modifications may be devised without departingfrom the spirit of this invention, the result accomplished by theinvention being the infinite number of relative adjustments that may besecured.

I claim:

1. In a device of the character described, the combination with a cable,acable actuator, a control actuator and a flexible sheath subject torelative variation in length with respect to said cable, of means forconnecting said cable to said actuators, and self adjusting means in oneof said connections to compensate for such relative variation.

2. In a device of the character described, the combination with a handledevice provided with a supporting guide, a remote device to becontrolled thereby provided with a supporting guide, a control wireconnecting said devices along a pathvariable as to length with respectto the length of said wire,

- and self adjusting means connecting said wire with one of saiddevices, whereby to compensate for such relative variation.

3. In an ignition circuit control. device the combination of a circuitbreaker actuator, a key operated lock remote from said actuator,

an axially movable cable controlled by said lock, and means connectingsaid cable with said actuator, said means including an extensiblemember, whereby to secure substantially accurate adjustment and controlof said arm from said lock.

l. In an ignition circuit control device the combination of a circuitbreaking actuator, a key operated lock remote from said actuator, anaxially movable cable controlled by said lock, and self adjusting meansconnecting said cable adjustably to said actuator.

5. In an ignition circuit cont-r01 device the combination of a circuitbreaking actuator and a key operated lock remote from said actuator, anaxially movable cable controlled by said lock, a flexible sheath forsaid cable subject torelative variation in length with respect to thecable, and clutch means frictionally engaging said cable with saidactuator.

6. In an ignition circuit control device, the combination of a circuitbreaker arm actuator and a key operated lock remote from said actuator,an axially movable cable controlled by said lock, an axially movable armengaging member, means defining the extent of axial movement of saidmember, and clutch members frictionally engaging said cable with saidarm engaging member.

7. In an ignition circuit control device in- Although I have disclosedbut one I eluding a circuit breaker arm and a key operated lock remotefrom said arm, the' combination with an axially movable cable controlledby said lock, ofan axially movable arm engaging member a tubularextension carried by said member, a rod movable longitudinally withinsaidextension and secured to said cable, a friction band engaging saidrod, a contractile spring clutch holdingsaid band in engagement withsaid rod, and-means confining said band and clutch within said tubularextension, whereby said cable and member are axially relativelyadjustable.

, 8. I11 an ignition circuit control device including a circuit breakerarm and a key operated lock remote from'said arm, the combination withan axiallymovable cable coneluding an extensible portion including meansresisting its extensible movement with y a force greaterthan thatrequired to overcome the load to which said control actuator is sub- 1ject, and yieldable in response to predetermineddegrees offorce'exceedingthe resi tmice of said means, whereby saidlast mentrolledby said lock, of anaxially movable arm engaging member, a tubularextension carried by said member and movable there-' with, meansdefining the limit of movement of said extension, a rod movablelongitudinally within said extension and secured to said cable, afriction band engaging said rod, a v

contractile spring clutch holding said band in engagement with said rod,and means confining said band and clutch within said tubular extension,whereby said cable and member are axially relatively adjustable.

9. In a device of the character described a tubular member movablelongitudinally of its axis, a rod telescopically movable in said member,and clutch elements confined within said member and frictionallyengaging said rod, whereby said rod and member may be relativelyadjusted and normally maintained in'adjusted position.

- 10. In an ignition circuit control device including a casing enclosinga circuit breaker arm and a key. operated lock remote from said arm, thecombination with a flexible me-l tallic sheathing secured to the casingand lock, of a cable enclosed by said sheathing and controlled by saidlock, an arm engaging member, and self adjusting means adjustablysecuring said cable to said member. 7 I a 11. In a device of thecharacter described, the combination with a cable, a cable actuator, acontrol actuator subject to a predetermined load, and a flexible sheathsubject to relative variation in length with respect to said cable;

of means for connecting said cable to said actuators, and self adjustingmeans in one of said connections to compensate for such relativevariation, said adjusting means comprising an extensible friction memberoifering to extensible movement a frictional resistance greaterthan'said load.

12. In a device of the character described, the combination with acable, a cable actuator, a control actuator subject to a predeterminedload, and a flexible sheath subject to relative variation in length withrespect to said cable; of means for connecting said cable to saidactuators, one of said connections in-

